Vibratory device

Details Vibratory device Vibratory device

1983-02-07

1985-06-18

Herrmann, Allan D.

Machine element or mechanism

Mechanical movements

Rotary to gyratory

366128, 404117, B06B 116, E01C 1928

Patent

active

045234868

ABSTRACT:
A vibratory apparatus in which the amplitude of vibration is continuously adjustable, includes a tubular rotatable shaft journalled in the member to be vibrated, and at least one elongated and flexible eccentric mass element disposed in the tubular shaft. The eccentric mass element is guided along guide surfaces, arranged so that part of the eccentric mass element is urged by centrifugal force away from the axis of the tubular shaft when the shaft is rotating. An adjustment means is coupled to the eccentric element to control the position of the element along the slide surfaces, to thereby vary the vibration amplitude of the vibrating tubular shaft.

REFERENCES:
patent: 2457413 (1948-12-01), Stokes et al.
patent: 2660067 (1953-11-01), Glover
patent: 2730902 (1956-01-01), Karlstrom
patent: 3179975 (1965-04-01), Nacci et al.
patent: 3616730 (1971-11-01), Boone et al.
patent: 3966344 (1976-06-01), Haber et al.
patent: 4221499 (1980-09-01), Breitholz et al.

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